Centering instrument assembly



FIG. 1 is a front exploded cross-sectional perspective view of a centering instrument assembly in accordance with the present invention;

FIG. 2 is a side exploded cross-sectional perspective view thereof;

FIG. 3 is a back exploded cross-sectional perspective view thereof;

FIG. 4 is a front cross-sectional perspective view thereof;

FIG. 5 is a side cross-sectional perspective view thereof;

FIG. 6 is a back cross-sectional perspective view thereof;

FIG. 7 is a front perspective view thereof;

FIG. 8 is a side perspective view thereof;

FIG. 9 is a back perspective view thereof;

FIG. 10 is a front perspective view thereof; and,

FIG. 11 is a back perspective view thereof.

The broken lines in the figures are for illustrative purposes only and form no part of the claimed design.

The stippled shading seen in FIGS. 1-9 is for illustrating contours and forms no part of the claimed design. 

CLAIM The ornamental design for a centering instrument assembly, as shown and described. 